Hello, the rags are actually microfiber towels for the wicking material made of 80% polyester and 20% polyamide which should not rot like cotton and is an amazing wicking material from what I tested, stay nice and damp only....one wick would work but I moved them apart so I can fit a 4" potted plant right between them and with in 1.5" or so from the bottom....once the roots travel into reservoir the bucket system it works just like the Kratky Hydroponic bucket system...lol...changed over to 2 - 23 watt CFL bulbs which equals 2 - 100 watt....real nice....
PS....I just left the tomato plant in the 4" pot for pictures only.....cheers...
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